the danish government has commissioned the geologists' to find out if a seabed in as part of the arctic is part of greenland's landmass and therefore belongs to the kingdom of denmark. christian leads the expedition. in his homeland, he is one of the most experienced specialists in his field. >> we want to get to the north pole because if our hypothesis is correct, then that area belongs to us because one of the largest submarine mountain ranges belongs to us. we are looking for evidence to claim a larger area. all the way over to russia. >> the rich extends northward across the sea floor from greenland and the north pole to the new siberian islands, which are about 1,800 kilometers away. that is why the voyage is politically controversial -- russia, norway, and canada also claim part of the region. the countries are all striving to ensure valuable natural resources are on their territory. the length of the voyage is limited to 45 days. otherwise, when winter sets in, it will become trapped in the polar ice until spring. the danish research team wants to create a precise map of the seas